Early Successional (T7) Post Frost Biomass — Main Cropping System Experiment (MCSE)
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Post-frost biomass of plants and surface litter in the MCSE Early Successional treatment (T7) is sampled as an estimate of the minimum harvestable biomass for cellulosic biofuel feedstock production. Since 2008, post-frost samples are collected after the air temperature dips below -2.2 C or 28 F at least once. Plants are not sorted to species but are separated from the surface litter; both fractions are weighed separately, and reported by sampling station (S1-S5) since 2012 and averaged across stations from 2008-2011.
Pre-frost biomass values are from the non crop biomass and are included for comparison as an estimate of maximum harvestable biomass. The “Unsorted” category in this table is defined as the total biomass of all species plus the unsorted category in the non-crop biomass table. As above, ”Surface litter” is not included in the "Unsorted" category; values are transferred directly from the non-crop biomass table.
This datatable is part of the Primary Production of Herbaceous Systems of the Main Cropping System Experiment dataset.
This dataset contains the biomass data of herbaceous systems of the Main Cropping System Experiment (MCSE), including Treatments 1-4 and 6-8 at the LTER Main Site (since 1990) and the Mid-successional (TSF) site (since 1993). Included are the data collected at or near peak biomass to estimate aboveground net primary production (ANPP). Systems with multiple harvests or with peaks occurring at different times throughout the growing season may have multiple measurements per year. See the ANPP protocol for sampling and measurement methods of these treatments.
Note
| Experiment: | Main Cropping System Experiment (MCSE) |
| Data available from: | January 2008 to October 2021 |
| Dataset: | KBS019 |
| Datatable ID: | KBS019-023.152 |
| Core Areas | Primary Production |
| Repository link: | http://doi.org/10.6073/pasta/f9b2a038b8a7ad43a252587a84935f30 |
| Related Tables: |
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| Personnel: |
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| Last Updated | 2024-03-18 |
| Variate | Description | Units |
|---|---|---|
| Year | The year the sample was taken | |
| campaign | The name of the sampling campaign | |
| pre frost sample date | date of the pre frost sample | |
| post frost sample date | sample date of the post frost sample | |
| treatment | The Treatment sampled | |
| replicate | The replicate sampled | |
| station | the station within the plot that was sampled | |
| species | The species observed | |
| pre frost biomass | The peak harvestable biomass. | g/m2 |
| post frost biomass | The harvestable biomass harvested after the frost | g/m2 |
| comments | A comment on this data point |
Data Excerpt
| year | campaign | pre_frost_sample_date | post_frost_sample_date | treatment | replicate | station | species | pre_frost_biomass | post_frost_biomass | comments |
|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | Post Frost Biomass | 2022-08-15 | 2022-12-01 | T7 | R1 | S1 | Surface Litter | 9.59 | 26.13 | |
| 2022 | Post Frost Biomass | 2022-08-15 | 2022-12-01 | T7 | R1 | S1 | UnSorted | 521.91 | 222.31 | |
| 2022 | Post Frost Biomass | 2022-08-15 | 2022-12-01 | T7 | R1 | S2 | Surface Litter | 15.76 | 56.04 | |
| 2022 | Post Frost Biomass | 2022-08-15 | 2022-12-01 | T7 | R1 | S2 | UnSorted | 671.47 | 237.94 | |
| 2022 | Post Frost Biomass | 2022-08-15 | 2022-12-01 | T7 | R1 | S3 | Surface Litter | 8.86 | 74.92 |